<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="city.js"></script>
</head>
<body>
<div style="display: flex ;justify-content: center">
    <select id="province">

    </select>
    <select id="city" style="margin-left: 40px">

    </select>
</div>
</body>
</html>